JPCL November 2018

 
JPCL November 2018


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In This Issue...


Hull Fouling Protection Coatings and the Transfer of Invasive Aquatic Species

by JPCL Staff

Fouling of vessels occurs naturally in the marine environment and if not controlled, can negatively impact a vessel’s performance. The transport of goods by sea can exacerbate fouling problems, bringing non-indigenous infestations of invasive aquatic species (IAS). This article discusses hull coatings designed to battle IAS as well as global regulations and protocols in place to curtail their transport.


Power to the Tower

by Mark B. Dromgool, KTA-Tator Australia Pty Ltd

In a world where electronic communications and power transmission is expected to exist uninterrupted, the reliability of the necessary towers — many constructed of bolted, lattice-type carbon steel, usually hot-dip galvanized (HDG) — is often taken for granted. How can facility owners of elevated lattice structures lengthen the life of these structures, lower the risk of section loss or diminished structural functionality and concurrently lower the service cost per year? This article outlines some of the measures that have been employed by several leading Australian asset owners who are responsible for a portfolio of vulnerable structures in severe marine environments.


Statistical and Technical Evaluation of Rapid DFT Measurement Technologies

by Jeff O’Dell, Wayne McGaulley and Evan Parson, Vision Point Systems, Inc.; and John Wegand, Paul Slebodnick and Jimmy Tagert, U.S. Naval Research Laboratory

This article reports on a study conducted to investigate a proposed alternative to the SSPC-PA 2 method, that of rapid scanning procedures to measure DFT using handheld electronic devices, and to verify whether any losses in precision, and thus fidelity, of the data resulted from the use of the new scanning method. Findings from the Naval Research Laboratory were used to develop recommendations for the use of DFT scanning probe technology in the field.


   
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